The answer is "A" to give credit
<em>I'm doing this question right now and it's fairly easy. :)</em>
<u>4 - The water pipes and fixtures in a building. (</u><u><em>plumbing)</em></u>
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<u>3 - A small, poorly built house or hut. (</u><u><em>hovel)</em></u>
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<u>2 - A servant who does the dirty, rough work in the kitchen. (</u><u><em>scullion)</em></u>
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<u>1 - An instrument that indicates time by the position of the shadows. (</u><u><em>sundial)</em></u>
Answer:
A
Explanation:
Eli Whitney was the person most responsible for initiating the use of interchangeable parts in manufacturing, and he first invented a machine that separated the cotton seed from the cotton fiber. He also used those parts that can be substituted ( interchangeable parts ) for the production of weapons, at a low price, with unskilled workers, which reduced greatly the prices to repair and replace parts.